Let's go beyond taxonomy in diet description: testing a trait-based approach to prey-predator relationships
Summary 1. Understanding 'Why a prey is a prey for a given predator?' can be facilitated through trait-based approaches that identify linkages between prey and predator morphological and ecological characteristics and highlight key functions involved in prey selection. 2. Enhanced understa...
Main Authors: | , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1079.4184 http://www.cebc.cnrs.fr/publipdf/2014/SJAE83_2014.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.1079.4184 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.1079.4184 2023-05-15T17:41:34+02:00 Let's go beyond taxonomy in diet description: testing a trait-based approach to prey-predator relationships Je´rô Me Spitz Vincent Ridoux Anik Brind'amour The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1079.4184 http://www.cebc.cnrs.fr/publipdf/2014/SJAE83_2014.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1079.4184 http://www.cebc.cnrs.fr/publipdf/2014/SJAE83_2014.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.cebc.cnrs.fr/publipdf/2014/SJAE83_2014.pdf text ftciteseerx 2020-05-03T00:20:16Z Summary 1. Understanding 'Why a prey is a prey for a given predator?' can be facilitated through trait-based approaches that identify linkages between prey and predator morphological and ecological characteristics and highlight key functions involved in prey selection. 2. Enhanced understanding of the functional relationships between predators and their prey is now essential to go beyond the traditional taxonomic framework of dietary studies and to improve our knowledge of ecosystem functioning for wildlife conservation and management. 3. We test the relevance of a three-matrix approach in foraging ecology among a marine mammal community in the northeast Atlantic to identify the key functional traits shaping prey selection processes regardless of the taxonomy of both the predators and prey. 4. Our study reveals that prey found in the diet of marine mammals possess functional traits which are directly and significantly linked to predator characteristics, allowing the establishment of a functional typology of marine mammal-prey relationships. We found prey selection of marine mammals was primarily shaped by physiological and morphological traits of both predators and prey, confirming that energetic costs of foraging strategies and muscular performance are major drivers of prey selection in marine mammals. 5. We demonstrate that trait-based approaches can provide a new definition of the resource needs of predators. This framework can be used to anticipate bottom-up effects on marine predator population dynamics and to identify predators which are sensitive to the loss of key prey functional traits when prey availability is reduced. Text Northeast Atlantic Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Summary 1. Understanding 'Why a prey is a prey for a given predator?' can be facilitated through trait-based approaches that identify linkages between prey and predator morphological and ecological characteristics and highlight key functions involved in prey selection. 2. Enhanced understanding of the functional relationships between predators and their prey is now essential to go beyond the traditional taxonomic framework of dietary studies and to improve our knowledge of ecosystem functioning for wildlife conservation and management. 3. We test the relevance of a three-matrix approach in foraging ecology among a marine mammal community in the northeast Atlantic to identify the key functional traits shaping prey selection processes regardless of the taxonomy of both the predators and prey. 4. Our study reveals that prey found in the diet of marine mammals possess functional traits which are directly and significantly linked to predator characteristics, allowing the establishment of a functional typology of marine mammal-prey relationships. We found prey selection of marine mammals was primarily shaped by physiological and morphological traits of both predators and prey, confirming that energetic costs of foraging strategies and muscular performance are major drivers of prey selection in marine mammals. 5. We demonstrate that trait-based approaches can provide a new definition of the resource needs of predators. This framework can be used to anticipate bottom-up effects on marine predator population dynamics and to identify predators which are sensitive to the loss of key prey functional traits when prey availability is reduced. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Je´rô Me Spitz Vincent Ridoux Anik Brind'amour |
spellingShingle |
Je´rô Me Spitz Vincent Ridoux Anik Brind'amour Let's go beyond taxonomy in diet description: testing a trait-based approach to prey-predator relationships |
author_facet |
Je´rô Me Spitz Vincent Ridoux Anik Brind'amour |
author_sort |
Je´rô Me Spitz |
title |
Let's go beyond taxonomy in diet description: testing a trait-based approach to prey-predator relationships |
title_short |
Let's go beyond taxonomy in diet description: testing a trait-based approach to prey-predator relationships |
title_full |
Let's go beyond taxonomy in diet description: testing a trait-based approach to prey-predator relationships |
title_fullStr |
Let's go beyond taxonomy in diet description: testing a trait-based approach to prey-predator relationships |
title_full_unstemmed |
Let's go beyond taxonomy in diet description: testing a trait-based approach to prey-predator relationships |
title_sort |
let's go beyond taxonomy in diet description: testing a trait-based approach to prey-predator relationships |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1079.4184 http://www.cebc.cnrs.fr/publipdf/2014/SJAE83_2014.pdf |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
http://www.cebc.cnrs.fr/publipdf/2014/SJAE83_2014.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1079.4184 http://www.cebc.cnrs.fr/publipdf/2014/SJAE83_2014.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766143205250695168 |